I am sorry but it is very difficult for you to get into a good college with this rank until and unless you have some quota reservations.

You will get the lower ranked colleges but in my opinion getting admitted to those colleges will be of no use. Placements of those colleges are very poor.

I would advise you to take a drop (if you're not a dropper) and prepare well for the exams and give it another try next year. Else look for private colleges outside Karnataka.

Hope it helps

All the best